With the announcement of the 2011 Bonnaroo lineup this week, seemingly every headline mentioned Eminem and Arcade Fire. What no one seems to be talking about, though, is the irony of the pairing of these two performers immediately following the Grammy Awards.

When Arcade Fire won the Grammy for Album of the Year -- a category where Eminem was also a nominee -- many people criticized the award, crying out on the internet, "Who is Arcade Fire??!!?" Even Rosie O'Donnell joined in the fray, tweeting: "album of the year ? ummm never heard of them ever."

Well, someone had heard of them before their Grammy award, because bands don't get booked to lead the lineup of a festival the size of Bonnaroo in two days.

"The Suburbs," Arcade Fire's third album, debuted at No. 1 on the Billboard charts. It received heavy critical acclaim, landing on best of 2010 lists from the likes of Time, MTV, Rolling Stone, Spin, Billboard, NPR, and numerous others. The Grammy win for Album of the Year didn't exactly come out of nowhere.

Arcade Fire was somewhat of an overnight success story, though. It just wasn't because of the Grammys.

In 2004, the notoriously strict-grading music website Pitchfork gave a 9.7 rating to Arcade Fire's debut album "Funeral." You might not have heard of Pitchfork either, but this unprecedented score from them rocketed Arcade Fire to indie stardom, and their album subsequently sold out at music stores everywhere. The band has been gaining popularity ever since.

Perhaps this video response to the "Who is Arcade Fire??!!?" movement explains it best (key points at about 1 minute in).

Still, I'm sure there are some fans waiting expectantly for Eminem and Win Butler to duke it out at Bonnaroo. Chances are, they'll be disappointed.